Apparatus for making sulfuric acid.



' m.'700,249. Patented May 20, I902.

A. MAG. SEBILLOT. APPARATUS FOR MAKING SULFUBIG ACID.

(Application fllad Dec. 20, 1900.]

(No Model.)

- r I Tim *6";

am a.

"m: "bums min: co. mowgmm. wAsnmcrrorL n, c.

UNITED STATES ATENT OFFICE.

AMEDEE MATHURIN'GABRIEL SEBILLOT, OFPARIS, FRANCE APPARATUS FOR MAKING SULFURIC ACID."

SPEGJLFIOATIO N forming part of Letters Patent No. 700,249, dated May 20, 1902.

' Application filed December 20, 1900. Serial No. 40,523. (No model.)

To all whom, it may concern:

Be it known that I, AMEDEE MATHURIN GABRIEL SE'IBILLOT, a citizen of the Republic of France, and a resident of Paris, France, have invented certain new and useful Improvements in Apparatus for the Manufacture of Sulfuric Acid, of which the following is a specification.

The object of my invention is to provide apparatus in which the temperature and proportion of the gases passing through the catalytic may be regulated or preserved at the desired uniform degree and in which the sulfuric acid will be produced in a highly-concentrated state; and it consists in the construction hereinafter described and claimed.

In the accompanying drawings I have shown the preferred form of apparatus embodying my invention.

Figure l is a Vertical section of the apparatus. Fig. 2 is a plan View of the column A with a section on line 00 g] of Fig. 1.

Referring to the drawings, A represents a vertical column the walls of which are formed of vitrified bricks or other suitable acid-proof material.

13 indicates an inner perforated partition supporting a thick layer of pumice-stone 1,

the spaces between the portions of said layer being filled with loose asbestos 2. Above said layer of pumice-stone I arrange a series of perforated plates C O 0, made of white stoneware and supporting a layerof fibrous asbestos 3 and a layer of fragments of spongy platinum 4.. Above these materials isvleft a free space forming the mixing-chamber, into which the mixture of sulfurous acid and atmospheric air is brought through a pipe D. Steam is admitted through the pipe E, and the quantity of steam is regulated by means of the cock or equivalent F. The pipe E extends through an aperture G, through which fresh air may enter the chamber in accordance with the state of the operation. In order to regulate the quantity of incoming air, the steam-pipe is made flexible and provided with a disk I-I, made of sufficient size toclose the aperture G. Said disk may be brought to or away from said aperture by means of the screw V to regulate the quantity of air entering the apparatus. The mixture thus obtained comes first in contact with the plates supporting asbestos and spongy platinum. Then the mixture comes in contact with pumice-stone and asbestos,"whereby a strong condensing action is produced. The non-condensed gases areexhausted by the ventilator I forcing'them through the pipeJ. As the gases arrive at the top of the apparatus at a high temperature, whereby the sulfuric acid producedwould also be in a state of vapor, a cooling action must be produced for collecting liquid sulfuric acid. To this 1 end the bottom part of the column is provided with a condenser formed of lead pipes N'N, through which is passed cold Water,

brought thereto through the pipe 0 and going The condensed acid out through the pipe P. drops'npon the bottom of the column, formed of Valvic stone and recessed so as to force the acid to flow through the channel Q.

When sulfuric acid is produced by means of sulfur contained in ores, with the extraction of metal" in view, the pipe J leads the non-condensed gases to the bottom of a column K,th e wallsof which may be formed of umn contains inclined plates L L L, over which is passed from the top a mixture o'f'ore and water. Sulfurous acid combines with metallic oxids to produce sulfates bythe action of atmospheric air. From the lowermost incline the mixture flows into a tank, (not vitrified bricks or of sheet-lead. Said colshown,) Where sulfuric acid is added in accordance with the quantity of oxid which has not been converted. The surplus'of gas passes through a chimney, or it is forced into a lead chamber in order to utilize the entire amount of sulfurous acid. I

Having fully described my invention, what I claim, and desire to secure by Letters Patent, isr An apparatus for manufacturing concenv trated sulfuric acid, comprising a verticallyarranged casing formed of suitable bricks, a

perforated partition at the bottom part'and within said casing, a thick layer of pumice-. stone and asbestos supported on said partition, a-series of perforated plates, at thetop part and, within the casing, layers of spongy platinum on said perforated plates,-.a m ixjug-chamber above the latter, a pipe coners contained in the casing, substantially as 10 and for the purpose set forth.

In testimony whereof I have hereunto set my hand in presence of two Witnesses.

AMEDEE MATHURIN GABRIEL SEBILLO'I.

Vitnesses:

ADQLPH STURM, EDWARD P. MACLEAN. 

